NESTERENKO, A. N.; RADZIEVSKII, G. V. Multiparameter inverse problem of approximation by functions with given supports. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 8, p. 1116–1127, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3517. Acesso em: 6 dec. 2025.